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Move kboot related code to shared/kboot.[ch] because it'll be reused by the firmwares of the add-ons.

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This commit is contained in:
László Monda
2017-09-22 01:10:29 +02:00
parent 36be965db9
commit 11d9e85cb7
3 changed files with 26 additions and 24 deletions
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21
left/src/bootloader.c
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@@ -1,14 +1,7 @@
#include "kboot.h"
#include "i2c_addresses.h"
#include "bootloader.h"
/* bits for enabledPeripherals */
#define ENABLE_PERIPHERAL_UART (1<<0)
#define ENABLE_PERIPHERAL_I2C (1<<1)
#define ENABLE_PERIPHERAL_SPI (1<<2)
#define ENABLE_PERIPHERAL_CAN (1<<3)
#define ENABLE_PERIPHERAL_USB_HID (1<<4)
#define ENABLE_PERIPHERAL_USB_MSC (1<<7)
__attribute__((used, section(".BootloaderConfig"))) const bootloader_config_t BootloaderConfig = {
.tag = 0x6766636B, // Magic Number
.enabledPeripherals = ENABLE_PERIPHERAL_I2C,
@@ -17,15 +10,3 @@ __attribute__((used, section(".BootloaderConfig"))) const bootloader_config_t Bo
.clockFlags = 0xFF, // Disable High speed mode
.clockDivider = 0xFF, // Use clock divider (0)
};
void JumpToBootloader(void) {
uint32_t runBootloaderAddress;
void (*runBootloader)(void *arg);
/* Read the function address from the ROM API tree. */
runBootloaderAddress = **(uint32_t **)(0x1c00001c);
runBootloader = (void (*)(void * arg))runBootloaderAddress;
/* Start the bootloader. */
runBootloader(NULL);
}

32
left/src/bootloader.h
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@@ -1,32 +0,0 @@
#ifndef __BOOTLOADER_H__
#define __BOOTLOADER_H__
// Includes:
#include <stdint.h>
#include <stddef.h>
// Typedefs:
typedef struct {
uint32_t tag; // Magic number to verify bootloader configuration is valid. Must be set to 'kcfg'.
uint32_t reserved[3];
uint8_t enabledPeripherals; // Bitfield of peripherals to enable.
// bit 0 - LPUART, bit 1 - I2C, bit 2 - SPI, bit 3 - CAN, bit 4 - USB
uint8_t i2cSlaveAddress; // If not 0xFF, used as the 7-bit I2C slave address.
// If 0xFF, defaults to 0x10 for I2C slave address.
uint16_t peripheralDetectionTimeoutMs; // Timeout in milliseconds for active peripheral detection.
// If 0xFFFF, defaults to 5 seconds.
uint16_t reserved2[2];
uint32_t reserved3;
uint8_t clockFlags; // The flags in the clockFlags configuration field are enabled if the corresponding bit is cleared (0).
// bit 0 - HighSpeed Enable high speed mode (i.e., 48 MHz).
uint8_t clockDivider; // Inverted value of the divider to use for core and bus clocks when in high speed mode.
} bootloader_config_t;
// Functions:
extern void JumpToBootloader(void);
#endif